Answer:
A) Maximize their market share.
Explanation:
Companies which believe higher sales volume will drive the cost down (& profits upward) will need to sell more of their products to achieve this target.
For example, if a bike manufacturer thinks that he can reduce cost by higher number of sales, he must maximize his market share and target more and more people to buy the bikes, let it be child, millennial, parents, everyone.
This will derive the sales volume to be higher and the costs to be lower (& higher long-run profits).